Padlock.



A. C/JACKSON & F. SOITEY.

PADLOCK.

APPLICATION FILED MAY 7| 1913.

1,191,004. Patented July 11, 1916.

Z SHEETS-SHEET I.

A. C.JJACKS0N & F. SOLEY.

PADLOCK.

APPLICATION FILED MAY-1.1913.

1,191,004. Patented Ju1y11,1916.

2 SHEETS-SHEET 2.

' 1ED STATES PATENT OFFICE.

ARTHUR c. JAcKso AND FRANK soLEY, 0E PHILADELPHIA, PENNSYLV NIA,

ASSIGNORS T0 MILLER LOCK 00., 0E PHILADELPHIA, PENNSYLVANIA, A con-IPORATION OF PENNSYLVANIA.

PADLOCK.

Specification of Letters Patent.

Patented July 11, 1916.

Application filedMay 7, 1913. Serial No. 766,144.

To all whom it may concern:

Be it known that we, ARTHUR G. JAoKsoN and FRANK SOLEY, citizens of theUnited States, residing in Philadelphia, county of Philadelphia, Stateof Pennsylvania, have invented certain Improvements in Padlocks, ofwhich the following is a specification.

One object of our invention is to provide a padlock which will bepractically indestructible.

Another object of the invention is to provide a casing of cast metal,which isindependent of the casing containing the operating mechanism ofthe lock and which is used as an inclosure for said locking mechanism.

A further object of the invention is to construct a padlock so that themechanism can be assembled in the inner casing and the shackle pivotedthereto. in order that the works can be tested before being placed inthe outer casing.

A still further object of the invention is to design the look so thatthrough-bolts or rivets are dispensed with in order that the fasteningmeans cannot be driven out of position when once the lock is assembledand completed. r

The invention is particularly adapted for use in places where the lockis likely to be tampered with by unauthorized persons attempting to openit without a key.

In the accompanying drawings: Figure 1 is a perspective View of ourimproved padlock; Fig. 2 is a sectional view of the lock; Fig. 8 is atransverse sectional view on the line a-a, Fig. 2; Fig. 4 is a sectionalplan view on the line bb, Fig.2; Fig. 5 is a sectional view on the line0 c, Fig. 2; Fig. 6 is a detached perspective view of the outer casing;Fig. 7 is a detached perspective view of the bottom plate; Fig. 8 is adetached perspective view of the inner frame carrying the mechanism;Fig. 9 is a perspective view of the key hub; Fig. 10 is a sectionalperspective view of the key hub looking in the opposite direction fromFig. 9; F 1g. 11 1s a perspective view of the plates for holding the keyhub in position; Fig. 12 1s a sectional perspective view of the key huband part of the casing; Fig. 13 1s a view of a modification showing theseparate-plate at the top of .the casing; Fig. 14 is a view illustratingthe plate at one side of the casing; and Fig. 15 is a perspective viewshowing the inner frame attached to the plate.

Referring to the drawings, 1 is the casing of the lock made of castmetal, preferably of brass or bronze, and made in one piece having anopening 2 for the key hub and openings 3 and 4 for the shackle 5.

6 is the pivot pin for the shackle which passes through an opening 7,Fig. 6, in front of the casing 1. This opening extends through the frontof the casing but does not extend through the back of the casing. Aflange surrounds the opening in the casing, as shown in Fig. 6, and thismetal is forced over the pin, as in Fig. 5, and hides it from view andalso prevents the pin from being removed after it is once inplace. ,Theheel of the shackle has an extension 8 and the nose 9 of the' shackle isnotched in the ordinary manner so that, in this type of lock, the noseand the heel of the shackle are engagedby the bolt 10, Fig. 8, which maybe of the ordinary form. i

The casing 1 is open at the bottom and mounted in the opening is abottom plate 11 having flanges 12, which extend backto the ends of thecasing 1. In the bottom plate are holes 13, which extend part way intothe plate from each side, as in Fig. 5, and which aline with the holes14 in the front and rear walls of the casing 1 forthe reception of pinswhich are driven in the holes and secure the bottom plate in the casing.When the casing is burnished the pins are completely hidden from view;it being impossible to remove them without destroying the lock. Thebottom plate snugly fits the casing so that when the casing is burnishedthe parting line disappears and the casing has the appearance of a solidcasting.

15 is the inner frame which is made of plates 16' and 17 spaced apart byposts. 18, some of which form the pivots for the looking mechanism. Thebolt 10 is mounted within the casing as are also the tumblers 19 and theother mechanism of the lock. In the plates 16 and 17 are the openingsfor the shackle pivot pin and the openings for the key hub. V

It will be understood that while we have shown a certain type ofmechanism in the drawings confined within the frame 15, the

mechanism may be varied according to the type of lock desired. \Ve layno claim in this application to the mechanism contained within thecasing.

The front plate 16 of the frame is recessed and has an opening 20 forthe key hub 21 and is countersunk, as at 22, around the opening for thereception of the thin plate 28, which is forked and fits between the twowalls of the countersink 22 and extends into the groove 24 back of theface plate 25 of the key hub 21. The key hub extends through the opening2 in the front of the casing 1 and through the opening 20 in the frontplate 16 of the inner frame and has its bearings in an opening in therear frame 17 and partly in the casing, as illustrated in Fig. 4. Afterthe key hub is in place, the plate 23 is slipped into position and holdsthe key hub against longitudinal movement, but allows it to turn freelywith the key. The plate 23 may be made in a single piece, as shown, orit may be made in two pieces without departing from our invention.

In assembling the lock, the frame 15 is placed in the casing 1 and whenthe holes for the pivot pins are in line with the holes 7 of the casing,the shackle 5 is placed in position and the pin 6 is driven whichattaches the inner frame to the casing and the shackle to both the frameand the casing. The key hub is then put in position alining the innerframe with the casing and the plate 23 is driven into the countersunkspace 22 between the plates 16 of the frame and the outer line of thecasing. The lock can now be tested to insure its working properly afterwhich the bottom plate 11 can be placed in position and the pins driveninto the holes 13 and 14 after which the flange around the opening 7 isturned down over the pivot pin and the lock is burnished so as to renderthe pins invisible, also the joints between the casing and the bottomplate, thus making a lock which is practi-,

cally indestructible. The key hub 21 is held by elements within thecasing and the shackle and the bottom plate are held by pins whichcannot be driven and which are hidden from view by the burnishing.

The casing is preferably made of brass-or bronze, which is tough andwhich cannot be easily broken. In some cases, as an additionalprecaution, the bottom plate may be brazed to the casing and the pinsdispensed with, but we prefer the construction shown.

As the mechanism is assembled complete in the inner frame the shacklecan be temporarily pivoted thereto and the mechanism tested before theframe is placed permanently in the outer casing and when the pivot pinfor the shackle is finally placed in position it properly locates theinner casing in respect to the outer casing and when the transverse keyplug is in position then the parts are brought into absolute alinementwithout the use of the ordinary rivets and posts.

In Fig. 13 we have illustrated a modification in which the lock casing 1is open at the upper end instead of at the lower end and the end plate11 is arranged to be located in the opening and notched to allow for themovement of the shackle, the plate being secured in the same manner asthe plate illustrated in Fig. 2.

In Fig. 14, we have illustrated a casing 1 having an opening at one sideinstead of at the end and the plate 11 is shaped to fit the opening.

In Fig. 15, we have illustrated another modification in which the plate11 is rigidly attached to the frame 15 carrying the mechanism of thelook so that when the plate is removed from the casing 1, the mechanismis removed with it. The plate can be held in place by rivets or theedges of the plate can be beveled, as illustrated in Fig. 1, and thecasing hammered down over the plate and after being burnished the jointis obscured from view.

We claim:

1. The combination in a padlock, of a casing made in a single piece openat one edge and having an opening in the front wall; two openings forthe shackle; a plate arranged to close the opening of the casing;locking mechanism contained in the casing; a shackle pivotally mountedin the casing and arranged to be engaged by the locking mechanism; a keyhub extending into the casing and through the locking mechanism; and aplate for locking the key hub to the casing.

2. The combination in a padlock, of a casing; a bottom plate fitting theopening in the casing, the casing being countersunk; a frame carryingthe locking mechanism mounted in the casing; a key hub extending throughthe front wall of the casing and into the frame, said key hub having agroove therein, the frame being countersunk; and a plate mounted in thecountersunk portion of the frame and extending into the groove in thekey hub, the bottom plate holding the last mentioned plate in position.

3. The combination in a padlock, of a hollow casing made in a singlepiece and open at one edge only; a plate fitting said opening; means forsecuring the plate to the casing; a frame carrying the lockingmechanism; a shackle; a pivot for the shackle of less length than thewidth of said casing, said pivot extending short of either side of thecasing, the metal of one side being forced over to cover the pivot pinso as to prevent the removal of the pin after it is once in place. I

4:. The combination in a padlock, of a cast metal casing made in asingle piece and having an opening in the bottom; a key hub opening inthe front plate and two openings in the top for the shackle; a shacklepivoted to the casing; a pivot pin for the shackle extending partlythrough the casing; a bottom plate mounted in the bottom of the casing;means for securing the bottom plate in position; a frame carrying thelocking mechanism located in the casing and having an opening for thekey hub; a key hub extending through the opening in the casing and intothe frame and having a head fitting the opening in the casing; a grooveback of the head, the frame being countersunk in a line with the grooveof the hub; and a thin plate driven into the countersunk portion of theframe back of the casing, the said plate entering the groove in the huband locking the hub to the casing.

5. The combination of a hollow casing having an opening in one edgeonly; a single frame arranged to pass through the opening and to belocated within the casing, said frame containing the assembled lockingmechanism; a shackle; a pivot pin for the shackle extending through theopening in the casing and through openings in the frame, whereby theframe is properly alined with the casing; and aplate for closing theopening in said casing.

In testimony whereof, we have signed our names to this specification, inthe presence of two subscribing witnesses.

Witnesses:

WM. E. SHUPE, WM. A. BARR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

